Each step on your chart moves the stepper 1 step or 1.8 degrees.
If you start out with 0110 and change to 0011 stepper will move 1.8 degrees
So to move 18 degrees you need 10 steps
start 0110
change to 0011
change to 1001
change to 1100
change to 0110 moved 4 steps
change to 0011
change to 1001
change to 1100
change to 0110 moved 8 steps
change to 0011
change to 1001 moved 10 steps
if you then move to 0011 you would then move back 1 step
Hope this helps
George